05000311/LER-1981-072, Forwards LER 81-072/03L-0.Detailed Event Analysis Encl

Forwards LER 81-072/03L-0.Detailed Event Analysis Encl

ML20030D314
Person / Time
Site:	Salem
Issue date:	08/21/1981
From:	Midura H Public Service Enterprise Group
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20030D315	List: 05000311/LER-1981-072, Forwards LER 81-072/03L-0.Detailed Event Analysis Encl
References
NUDOCS 8109010168
Download: ML20030D314 (3)

LER-1981-072, Forwards LER 81-072/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
3111981072R00 - NRC Website

text

1 n

C PSIEG 4

Put:lic Service Electric and Gas Company P O. Box 168 Ha 20cks Bridge, New Jersey 08038 Salem Generating Station August 21, 1981 i

h Sb G

Mr. Boyce H. Gr.ter 4,

Q Director of USNRC d

~

'~

Office of Inspection and Enforcement g

Region 1 (p /

'p y

631 Park Avenue King of Prussia, Pennsylvania 19406 9

'N A

W

Dear Mr. Grier:

LT. CENSE NO. DPR-75 DOCKET NO. 50-311 REPORTABLE OCCURRENCE 81-72/03L Pursuant to the requirements of Salea Generating Station Unit No. 2 Technical Specifications, Section 6.9.1.9.b, we are submitting Licensee Event Report for Reportable Occurrence 81-72/03L.

This report is required within thirty (30) days of the occurrence.

Sincerely yours,

//lthbww H.

J.

Midura Manager -

Salem Generating Station CC:

R.

A.

Udcritz General Manager - Nuclear Production Director, Office of Inspection and Enforcement (30 copies)

Director, Office of Management

,. 93 Information and Program Control (3 copies) j 1ll 8109010168 810821

% 2nn o2m u sa e

PDR ADOCK 05000311 S

PDR

Report Number:

81-72/03L Report Date:

Occurrence Date:

7-23-81 Facility:

Salem Generating Station, Unit 2 Public Service Electric & Cas Company HancockE Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

Solid State Protection System (S.S.P.S.) Train B - Incperable This report.was initiated by Incident Report 81-284.

CONDITIONS PRIOR TO OCCURRENCE:

Mode 2 - Rx Power - 10 aamp - Unit Load 0 MWe DESCRIPTION OF OCCURRENCE:

On July 23, 1981, while performing the S.S.P.S. periodic test, SP (O) 4. 3. 2.1. l (e-b), the operator discovered that logic A switch in position 1 did not function properly in mode blocks inhibit and not inhibited.

Switch position 1 tests the loss of flow loop 1 circuitry.

S.S P.S. train B was declared inoperable and Limiting Condition For Operation (L.C.O.)

3.3.1, table 3.3-1, action 1 was entered at 0930 hours0.0108 days <br />0.258 hours <br />0.00154 weeks <br />3.53865e-4 months <br /> on July 23, 1981.

This occurrence constituted operation in a degreded mode in accord-ance with technical specification 6.9.1.9.b.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

Equipment failure.

Universal board serial No. 0156 had failed.

ANALYSIS OF OCCURRENCE L.C.O.

3.3.1, table 3.3-1, action 1 states:

With the number of channels operable one less than required by the minimum channels operable requirement, be in hot standby within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

CORRECTIVE ACTION

Universal board serial No. 0156 was replaced in kind by universal board serial No. 0220.

S.S.P.S.

train B was tested Gatisfactorily

'nd returned to service.

L.C.O.

3.3.1, table 3.3-1, action 1 was terminated at 1145 hours0.0133 days <br />0.318 hours <br />0.00189 weeks <br />4.356725e-4 months <br /> on July 23, 1981.

LER 81-72/03L FAILURE DATA:

Westinghouse Universal Board Serial No. 0156 Part No. 6056D21601

// 'h, (4/[cboud Prepared By J.

Varga

_ Manager - SaFem Gbnerating Station SORC Meeting No.

81-80

}